User s Manual. 30-CH Fast Digital Thermometer Module. IM E 1st Edition

Transcription

1 User s Manual 30-C Fast Digital Thermometer Module 1st Edition

2 Foreword Thank you for purchasing the WE C Fast Digital Thermometer Module, a PCbased measurement instrument for the WE7000. This user s manual contains useful information about the functions and operating procedures of the WE7231 as well as precautions that should be observed during use. This manual is written with the assumption that you will be using the WE7000 Control Software that is included with the measuring station. For general information about the WE7000, (primarily the operations of the measuring station, the optical interface module, the optical interface card, and the WE7000 Control Software) see the WE7000 User s Manual (IM E). Manual Title WE7000 User s Manual Manual No. IM E To ensure proper use of the instrument, please read this manual thoroughly before beginning operation. After reading the manual, keep it in a convenient location for quick reference in the event a question arises. Notes Trademarks Revisions This manual was written for version of the WE7000 Control Software and module firmware version The operating procedures and screen contents described in this manual may differ from those in other versions of the software. The contents of this manual are subject to change without prior notice as a result of improvements in the instrument s performance and functions. Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. owever, should you have any questions or find any errors, please contact your nearest YOKOGAWA representative listed on the back cover of this manual. Copying or reproduction of all or any part of the contents of this manual without the permission of Yokogawa Electric Corporation is strictly prohibited. Microsoft, Windows, and Windows NT are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Adobe and Adobe Acrobat are trademarks of Adobe Systems incorporated. All other company and product names used in this manual are trademarks or registered trademarks of their respective companies. 1st Edition: November 2001 Disk No. WE16 1st Edition: Norbember 2001 (YK) All Rights Reserved, Copyright 2001 Yokogawa Electric Corporation 1

3 Checking the Contents of the Package Unpack the box and check the contents before operating the instrument. If some items are missing or otherwise inconsistent with the contents description, please contact the dealer from which you purchased them. Measurement Module Check that the model name given on the name plate matches the one on your order form. Model Model Suffix Code Description WE C Fast Digital Thermometer Module /E English help message NO. (Instrument Number) When contacting the dealer from which you purchased the instrument, please give them the instrument number. MODE NO. Made in Japan Accessories The following standard accessories are supplied with the instrument. Make sure that all items are present and undamaged. One user s manual (this document) Optional Accessories (Sold Separately) Part Name Model Code Description 30-C Scanner Box M4 screw terminal and 1 meter connecting cable 30-C Scanner Box /3 M4 screw terminal and 3 meter connecting cable Connecting cable 2

4 ow to Use This Manual Structure of the Manual This manual consists of four chapters and an index as shown below. Chapter Title Description 1 Functions Describes the system configuration and functions. 2 ardware Preparation Explains how to install the module into the measuring station, and how to connect the input. 3 Troubleshooting and Explains the procedures for troubleshooting and self- Maintenance testing. 4 Specifications Outlines the specifications of the module. Index An alphabetical index. Conventions Used in This Manual Units k Denotes (For example, 100 kz) K Denotes (For example, 720 KB) Boldface Characters Characters set in boldface usually refer to items on-screen or on the instrument (such as knobs, windows and buttons) with which the user interacts. Symbols The following symbols are used in this manual to alert you to important information. This symbol is affixed to the instrument, and indicates that due to possible danger to the user or instrument, the user s manual should be consulted. It is also printed on the corresponding reference page in the user s manual. WARNING Describes precautions that should be observed to prevent injury or death to the user. CAUTION Describes precautions that should be observed to prevent minor or moderate injury to the user, or damage to the instrument. Note Provides information that is important for proper operation of the instrument. 3

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6 Contents Foreword... 1 Checking the Contents of the Package... 2 ow to Use This Manual... 3 Chapter 1 Functions 1.1 System Configuration and Block Diagram Operation Panel Setting Measurement Conditions Setting the Alarm Waveform Display, Automatic Saving of Measured Data, File Conversion, and Other Functions Name and Functions of Each Part Chapter 2 ardware Preparation 2.1 Mounting Modules in the Measurement Station Connecting the 30-C Scanner Box and the Input Signal Wire Index Chapter 3 Troubleshooting and Maintenance 3.1 Troubleshooting Self Test Maintenance Chapter 4 Specifications 4.1 Performance Specifications Factory Default Settings General Specifications Specifications for the 30-C Scanner Box External Dimensions Index... Index-1 5

7 Functions Chapter 1 Functions 1.1 System Configuration and Block Diagram System Configuration The following is an example in which the 30-C Fast Digital Thermometer WE7231 is installed into the measuring station and the measuring station is connected to a PC with the optical fiber cable. 1 Optical fiber cable Measuring station WE7231 PC Optical interface modules 30-C Scanner Box (sold separ separately) Optical interface card DUT Block Diagram C1 C2 Scan signal Power supply WE C Fast Digital Thermometer Module Internal bus C3 C4 DC + - CPU 32bits RISC C15 C15c G C16 C30 C30c RJC 30-C Scanner Box Connecting cable ATT 0/40dB A/D Amplifier circuit Acquisition - control circuit Voltage control circuit + Input signal processing circuit for C1-C15 Input signal processing circuit for C16-C30 DPRAM Memory Module control program (flash memory) WE bus interface WE bus 1-1

8 1.1 System Configuration and Block Diagram Description of Operation The 30-C Scanner Box (sold separately) connects to the input connector of the 30-C Fast Digital Thermometer WE7231 using the connecting cable, and the devices under measurement are connected to each terminal of the 30-C Scanner Box. If the device under measurement is a thermocouple or if you are measuring DC voltage, the input terminals are connected using a 2-wire system. When measuring resistance or resistance temperature detectors, a 4-wire system is used. A scanning signal is sent through the connecting cable from the WE7231 to the 30-C Scanner Box, and the response from the device under measurement determines which signals are selected for input to the WE7231. With thermocouple or DC voltage input measurement, the input signal is modified in the attenuator (ATT) and amplifier circuits then undergoes A/D conversion. When measuring resistance such as in resistance temperature detectors, a constant current is given through the connecting cable from the WE7231 to the device being measured, and in the same manner as during thermocouple or DC voltage input measurement, the voltage signal generated at both ends of the device being measured is input to the WE7231 where it undergoes A/D conversion. These converted digital signals are isolated in the photocoupler and the digital data which represents the measured values is stored in memory. When measuring temperature, the reference junction temperature is measured using the platinum resistance temperature detector inside the scanner box, and the CPU performs reference junction compensation, or RJC, (this function can be turned ON/OFF) and voltage-temperature conversion on the previously stored measurement data from the thermocouple. These results are then re-stored. The data stored in memory can be recalled from a PC through communications. 1-2

9 Functions 1.2 Operation Panel The WE7000 Control Software installed in the PC is used to control the 30-C Fast Digital Thermometer WE7231. The WE7000 Control Software displays operation panels similar to those shown in the figure below. This user s manual does not explain the operations of the operation panel or waveform monitor. For these operations, see the WE7000 Control Software s online help. Basic Settings Select the measurement function Select the measuring range/type of thermocouple 1 Start/stop measurement Turn the waveform monitor ON and OFF Select the reference channel (for difference between channels calculation) Select the sampling interval Alarm occurrence status indication Execute NU measurement on channels set to use the null value Display the Table Entry window (see next page) Display settings for channels Execute burn out detection Select for automatic burn out detection Burn out detection indicator Click to release alarm occurrence status indication hold Select to put the alarm occurrence status indication on hold Other Settings Select to use the moving average as the measured values Select the measurement channel Set the number of samples for the moving average Select to calculate the difference from the reference channel Select to use the NU value Set alarm detection by group Toggle the reference junction compensation (RJC) between Internal and External Input the reference junction temperature for external reference junction compensation (RJC) Select the units of temperature Select the time base Select to enable fast scan mode Set alarms for the measurement channels 1-3

10 1.2 Operation Panel Table Entry Window Select the abel Select the measurement function Select the type of thermocouple and resistance temperature detector, and the measuring range Select to use the NU value Select to calculate the difference from the reference channel Select to average the measured values Set the number of samples used for averaging Enter the alarm output settings Select the reference channel Select to enable fast scan mode Select to hide alarm output and reference channel settings Paste settings Copy settings Select items to be copied Displaying Alarm Status and Burn out by Channel Select groups for alarm status display or burn out Grey indicator: channels in the measured group currently not being measured Black indicator: channels not set to output alarms Green indicator: channels from the measured group set to output alarms (When alarm occurs, color changes from green to red) When displaying the Burn Out status, the indicators of the burned out channels change from green to red. Note When an alarm occurs frequently, the alarm status display overloads processing resources and may make it impossible to perform panel operations such as setting changes. If this happens, turn the Monitor setting OFF. 1-4

11 Functions 1.3 Setting Measurement Conditions Selecting the Measurement Function Choose from TC (thermocouple), DCV (DC voltage), RTD (resistance temperature detector), and OM (resistance). RTD (resistance temperature detector) and OM (resistance) can only be selected for the odd-numbered channels between C1 and C15, or the even-numbered channels between C16 and C30. Also, if at least one channel among C1-C15 or C16-C30 is set to RTD (resistance temperature detector) or OM (resistance), measurement on the even-numbered channels from C1 to C15 or the odd-numbered channels from C16 to C30 will no longer be possible. ence, you will not be able to enter measurement function settings on those channels. 1 Selecting the Type of Thermocouple and Resistance Temperature Detector and the Range The following is a breakdown by measurement function of the type, range, and measurement range that can be selected. Thermocouple (TC) Type Measurement Range Resolution K to C 0.1 C E to C 0.1 C J to C 0.1 C T to C 0.1 C Resistance Temperature Detector (RTD) Type Measurement Range Resolution* Pt to C 0.01 C (0.1 C) * The resolution in parentheses is for an integral time of 1 ms or 4 ms. DC Voltage Input (DCV) Range Measurement Range Resolution* 20 mv ± mv 100 nv (1 µv) 200 mv ± mv 1 µv (10 µv) 2 V ± V 10 µv (10 µv) 20 V ± V 100 µv (1 mv) *The resolution in parentheses is for an integral time of 1 ms or 4 ms. Resistance (OM) Range Measurement Range Resolution* 20 OM 0.0 to Ω 100 µω (1mΩ) 200 OM 0.0 to Ω 1 µω (10 mω) 2 kom 0.0 to Ω 10 mω (100 mω) 20 kom 0.0 to kω 100 mω (1 Ω) 200 kom 0.0 to kω 1Ω (10 Ω) 2 MOM 0.0 to MΩ 10 Ω (100Ω) *The resolution in parentheses is for an integral time of 1 ms or 4 ms. NU For each channel, you can set whether the null value is applied to measurement values. When the NU check box is selected, the measured value is equal to the actual value minus the null value. Using the NU value, the residual voltage can be cancelled, for example when measuring in microvolts. If the NU check box is selected during measurement, the value measured immediately thereafter is used as the null value. If the NU check box is selected while measurement is stopped, the value measured immediately after measurement starts is used as the null value. If you click the NU Meas button, the null values of the channels whose NU check boxes are selected are measured again. 1-5

12 1.3 Setting Measurement Conditions Difference Computation of the Input Between Two Channels You can assign a channel from other linked 30-C Fast Digital Thermometer WE7231s or equivalent modules as the reference channel, and calculate the difference against the input of the reference channel, select the Delta check box of the channel on which to calculate the difference. The Moving Average of the Measured Values Select the On check box under Average to calculate the moving average of the measured value. Select the average from 2 to 100. Fast Scan Mode Sampling Interval If you select the Fast Scan Mode check box, only the odd-numbered channels from groups 1 (C1 to C15) and 2 (C16 to C30) are available, thereby allowing a short sampling interval. When Fast Scan Mode is OFF (normal scan mode), all channels are enabled. The sampling interval applies to all channels. When using Internal Time Base Normal Scan Fast Scan Integration time 0.10 to 0.19 s 0.06 to 0.11 s 1 ms 0.2 to 0.79 s 0.12 to 0.44 s 4 ms 0.8 to 3.49 s 0.45 to 1.99 s 16.7/20 ms* 3.50 s to 2.0 s to 100 ms * The integration time is automatically switched depending on the frequency of the power supply. When using External Time Base Normal Scan Fast Scan Integration time 0.15 to 0.24 s 0.10 to 0.14 s 1 ms 0.25 to 1.09 s 0.15 to 0.59 s 4 ms 1.10 to 3.69 s 0.60 to 2.09 s 16.7/20 ms* 3.7 s to 2.1 s to 100 ms * The integration time is automatically switched depending on the frequency of the power supply. Note If any channel uses the 200 kω or 2 MΩ range, an additional 0.8 s for normal scan or 0.4 s for fast scan are added. If you change the sampling interval after starting measurement, the Time Since the Start of Measurement display will not be accurate. Reference Junction Compensation To carry out reference junction compensation using the internal circuitry, select Internal from the RJC Source list box. Select External for external reference junction compensation. Set the reference junction temperature when performing external reference junction compensation. This setting applies to all channels. 1-6

13 Functions 1.3 Setting Measurement Conditions Burn Out This function is available only when TC (thermocouple) is selected as the measurement function. When the Auto check box is selected, burn out is automatically detected during measurement. If you click the Exec button, burn out detection is executed. This setting applies to all channels. When a burn out is detected in the thermocouple, the indicators displayed on the Moni tab of the operation panel turn red and Burn Out appears in the measured value display. Also, current flows to connected thermocouples during burn out detection. Note When the sampling interval is set to one of the following values, the indicators are displayed at every other channel s, s, s, s. When burn out is automatically detected, the load on the PC can be large so updating of the displayed waveform may be temporarily disabled. 1 Time Base You can select whether to sample the input signal with the sampling interval based on the module s internal clock, or to sample to the time base signal (CMNCK) of the measuring station (the BUSCK setting). If you select BUSCK, time base signals with an interval shorter than the specified interval are ignored. Units for Temperature Measurement In the Unit box, select the units of temperature (C, K, or F) to be used by the module (or all modules if more than one are linked) during temperature measurement. 1-7

14 1.4 Setting the Alarm Alarm Type Select the alarm type from the following choices. Off: Do not detect alarms Rise: Output when measured value changes from a value less than the specified upper limit to a value greater than the specified upper limit. Input signal igh level Alarm Fall: igh: ow: Output when a measured value changes from a value exceeding the specified lower limit to a value less than the lower limit. Output when a measured value is greater than or equal the specified upper limit. Output when a measured value is less than or equal the specified lower limit. Input Signal ow level Alarm In: Out: Output when a measured value is between the specified upper and lower limits (inclusive). Output when a measured value is less than the specified lower limit or greater than the specified upper limit. Input Signal igh level ow level Alarm Group You can divide the channels for which alarms were set into four groups. The alarm occurrence status for each group is displayed in the operation panel, and can be output to external devices by selecting the Out check box. You can assign any channel to any group. Combination Select the condition under which alarms are output for each group. OR: output alarm if any one channel in the group generates an alarm AND: output alarm when all channels in the group generate an alarm 1-8

15 Functions 1.4 Setting the Alarm Alarm Output When the Out check box is selected, you can output the alarm occurrence status as a bus trigger to the measuring station s BUSTRG1 or BUSTRG2. An alarm is output if any of the groups for which alarm output was specified generate an alarm. When an alarm occurs and the bus trigger signals are set to output from the WE7231 in the Trigger Source/Time Base Source/Arming settings dialog box, if the alarm output conditions are Rise/Fall when the conditions are met, the bus trigger signal is set to True for approximately 1 µs. When the alarm output conditions are igh, ow, In, or Out, the bus trigger signal is True for as long as the conditions are met. For information about the settings in the Trigger Source/Time Base Source Setting dialog box, see section 4.6, Setting the Trigger Source/Time Base Source/Arming in the WE7000 User s Manual (IM E). 1 Example of Alarm Output C1 input signal igh level Alarm (type: igh) C2 input signal igh level Alarm (type: Rise) (When the combination is OR) Event output TRIG_IG TRIG_OW TRIG_IG TRIG_OW TRIG_PUSE BUSTRG output (When the combination is AND) Event output TRIG_PUSE BUSTRG output Alarm Status Indicator The alarm occurrence status for each group is displayed according to the combination setting. Also, when you select the group you wish to display under the Moni tab, the button displaying the alarm status appears. You can confirm the alarm status of each channel, and when an alarm occurs, the button color turns from green to red. Alarm Status Indicator old When the old check box is selected, the alarm occurrence status indicator is held from the point when an alarm occurs. If you click Reset, the hold is released. 1-9

16 1.5 Waveform Display, Automatic Saving of Measured Data, File Conversion, and Other Functions The following functions are common to all measurement modules controlled by the WE7000 Control Software. For details, see the WE7000 User s Manual (IM E). Controlling the Timing of Measurement Start (Arming) You can control the measurement start timing using the arming signal which is set in the Trigger Source/Time Base Source/Arming Setting dialog box. When the measurement module is connected to the arming signal (ARM) bus in the Trigger Source/Time Base Source/Arming Settings dialog box, the arming signal enters a wait state when the user clicks the Start button in the operation panel, and measurement starts when the arming signal becomes True. For information about the settings in the Trigger Source/Time Base Source/Arming Setting dialog box, see section 4.6, Setting the Trigger Source/Time Base Source/Arming in the WE7000 User s Manual (IM E). Waveform Display Automatic Saving File Conversion You can display measured data as a waveform on the WE7231. When measurement is started on WE7231 s operation panel, waveforms are automatically displayed by default in the WE7000 Control Software s waveform monitor. Besides saving the waveform data from those displayed in the waveform monitor, measured data can also be automatically saved. You can select to save the data to one file or by specifying the number of data points you may save to multiple files. Saved measurement data can be converted from ASCII data in CSV format (*.csv) or physical values in 32-bit floating point format (*.wvf, conforming the IEEE standard). Measured Data Scaling Set two arbitrary points from the measured values (VP1, VP2) and the physical value corresponding to those measured values (SP1, SP2). The scale conversion equation (y=mx+b) is determined based on these four values. The measured values are converted to physical values according to this equation, and can be displayed in a waveform or saved as measurement data. SP2 Physical values SP1 Y=ax + b VP1 VP2 Measured values 1-10

17 Functions 1.6 Name and Functions of Each Part Front Panel 1 Start indicator ights when measurement starts Input connector Connector for the scanner box * See page 2-5 for the names and functions of each part of the 30-C Scanner Box (sold separately). 1-11

18 ardware Preparation Chapter 2 ardware Preparation 2.1 Mounting Modules in the Measurement Station Preparation Before shipping, a cover plate is affixed to each slot on the measuring station as shown below. Confirm that there is no power being supplied to the measuring station, then loosen the two attachment screws and remove the cover plate of the slot into which a module will be installed. Please note that the left-most slot is reserved for communications modules, and cannot be used for the WE7231. * The example below shows the WE400 Measuring Station. Dedicated slot for optical interface module Available slot 2 Attachment screw Cover plate Attachment screw Installing the 30-C Fast Digital Thermometer Module WARNING Be sure to tightly fasten the upper and lower attachment screws. Connecting an input cable without first tightening the screws may result in electric shock because the protective grounding of the measuring station may be rendered ineffective (depending on the power supply cord). CAUTION To avoid damage to the instrument, turn OFF the standby power switch on the measuring station when installing a measurement module. When inserting the module into the slot, be careful not to pinch your finger in the release lever. Also, the module guide protrudes from inside the slot, so do not insert your hand into the slot. Do not remove the cover plate from any slot unless a module will be mounted into it. Doing so could cause problems, for example if the temperature rises. The cover plate also suppresses the potentially damaging effects of magnetic waves. Insert the module along the guide rail of the slot from which you removed the cover plate. Push the module until it clicks into the connector. Be careful not to get your fingers caught in the ejection lever while inserting the module. When the module is securely inserted, fasten the module attachment screws (tightening torque: 0.6 to 0.7 N-m). To remove the module, loosen the module attachment screws and pull the ejection lever from the inside to the outside. This will force the module out of the slot. See illustration on the next page. 2-1

19 2.1 Mounting Modules in the Measurement Station When removing the module Ejection lever Module attachment screw Module attachment screw Note When synchronization of the measurements of multiple input signals is desired (linking the modules), install the multiple digital thermometer modules in adjacent slots. 2-2

20 ardware Preparation 2.2 Connecting the 30-C Scanner Box and the Input Signal Wire You cannot connect the input signal wires directly to the 30-C Fast Digital Thermometer Module WE7231. To connect the input signal wires, you need the 30-C Scanner Box (model , sold separately). 2 Connecting the 30-C Scanner Box to the Input Signal Wire WARNING There is a danger of electric shock between the input terminals since they only have functional isolation. Functional isolation means isolation that removes the effect of noise from the electric potential difference occurring between 2 points, and is intended to satisfy measurement specifications rather than to provide protection from electric shock. The guard terminal is common within groups (C1-C15 and C16-C30). Also the guard terminal is connected to the terminal of the measurement channel inside the module. If the potential of the terminal at each channel differs, the module or connected device may be damaged so don t use the guard terminal. CAUTION Do not apply a voltage exceeding the following levels, as it may damage the module. Maximum allowable input range: 30 VACrms, 42.4 Vpeak or ±60 VDC between and. (Overvoltage category: CAT I and II) Maximum noise across channels: 60 VACrms or ±100 VDC Do not apply the voltage exceeding 60 VACrms or ±100 VDC between input channels, as it may damage the module and 30-C Scanner Box. Remove the 30-C Scanner Box from the module when connecting the signal wires to avoid damaging the module. Do not apply voltage between the terminal and guard terminal (terminal with the G signal) as this may result in damage to the module and any connected devices. The guard terminal is connected to the circuit common inside the module. When measuring voltage, the guard terminal and terminal form a direct connection since the terminal is connected to the circuit common. Also, when measuring resistance, terminal is the standard for the circuit common. Note When performing internal reference junction compensation on the thermocouple input, consider the following suggestions for stabilizing the temperature at the terminal section. Make sure the terminal cover is in place. Keep the temperature constant in the area where the instrument is operating. Do not use thick wires (a cross sectional area of 0.5 mm 2 or more) that have large radiation effects. Place the 30-C Scanner Box at a sufficient distance from the point of measurement so that the heat from the point of measurement will be conducted through the wiring rather than to the 30-C Scanner Box. To prevent noise, you can use the functional grounding terminal on the side of the 30-C Scanner Box to ground the guard terminal or terminal (see next page). 2-3

21 2.2 Connecting the 30-C Scanner Box and the Input Signal Wire Thermocouple/Voltage Measurement Connects to the and terminals of channels 1-30 using a 2 wire system. Each and terminal of channel 15C and 30C is a dedicated input terminal for resistance temperature detector/resistance measurement. Don t connect these when measuring thermocouple/voltage. Resistance Temperature Detector/Resistance Measurement Connect using a 4 wire system. When the measurement function is set to RTD (resistance temperature detector) or OM (resistance), measurement is performed on the input signal voltages from the odd-numbered channels between C1 and C15, or the even-numbered channels between C16 and C30. The next-numbered channel becomes the current output terminal of the voltage measurement channel. For example, if channel 1 s and terminals are the voltage input terminals, then channel 2 s and terminals are the current output terminals. The each and terminal of channel 15 or 30 become current output terminals. i V C2 s terminal C1 s terminal C1 s terminal C2 s terminal Mixing 2 and 4 Wire Systems The terminals on the scanner box are divided into groups 1 and 2, and you can specify a 2 or 4 wire system for each group. Even for one channel, when you select measurement with a 4 wire system (resistance temperature detector/resistance measurement), you can only measure the odd-numbered channels from group 1 or even-numbered channels from group 2. owever you can mix 2 and 4 wire systems; for example if you measure a resistance temperature detector or resistance with a 2 wire system on C1, you can have a 4 wire system such as the thermocouple or voltage on C3. Group 1: C1-C15, Group 2: C16-C30 2-4

22 ardware Preparation 2.2 Connecting the 30-C Scanner Box and the Input Signal Wire Attaching and Removing the Terminal Cover Unscrew the two attachment screws in the upper part of the 30-C Scanner Box and remove the cover as shown in the diagram below. After connecting all of the input signal wires to the input terminals, fasten the input signal wire with the cable clamp, re-attach the terminal cover, and tighten the terminal cover attachment screws. Use crimp-on lugs to ensure the connection to the input terminal is secure, and if it s not necessary to use the cable clamp, you can remove the clamp to widen the opening, and allow thicker wiring. When connecting to all input terminals, the maximum allowable cross-sectional area per cable (due to the restriction on the area of the cover opening) is the following. With a cable clamp: 2 mm 2, without a cable clamp: 19 mm 2 2 Terminal cover attachment screws (2) Terminal cover Cable attachment screw Cable clamp Cable clamp attachment screw Functional ground terminal Example of terminal arrangement M4 screw for each terminal Connector Guard terminal BETWEEN AND TERMINA 30VACrms, 42.4Vpeek OR 60VAC BETWEEN TERMINAS AND CASE 150V MAX CAT Guard terminal terminal (1) terminal (1) terminal (15) terminal (15) terminal (15C) terminal (15C) Guard terminal G G (1C) (16C) (3C) (18C) (5C) (20C) (7C) (22C) (9C) (24C) (11C) (26C) (13C) (28C) (15C) (30C) G G terminal (16) terminal (16) terminal (30) terminal (30) terminal (30C) terminal (30C) Guard terminal Cable clamp Functional ground terminal 2-5

23 2.2 Connecting the 30-C Scanner Box and the Input Signal Wire Connecting to a Module CAUTION Turn OFF the standby power switch on the measuring station when connecting a module to the 30-C Scanner Box. As in the diagram below, use the cable that came with the 30-C Scanner Box between the scanner box and the module input connector. Connection Cable (Accessory for the 30-C Scanner Box) 30-C Scanner Box 2-6

24 Troubleshooting and Maintenance Chapter 3 Troubleshooting and Maintenance 3.1 Troubleshooting If servicing is required, or if the instrument is not operating correctly after performing the corrective actions listed below, contact your nearest YOKOGAWA dealer as listed on the back cover of this manual. To verify that the module is operating correctly, perform the self test described on the next page. Problem Possible Causes/Corrective Actions Reference Page Module does not operate. Check that the module is installed correctly into the station. 2-1, * Also, install the module into another slot, and check whether it will operate there. If it operates in the other slot, the measuring station is likely to have malfunctioned. If the module is installed correctly and does not operate, the fuse might have melted, the connector might be bad, or the IC may have malfunctioned. In any case, contact your nearest YOKOGAWA dealer to have it repaired. Waveform data cannot be Check that the input signal wires are connected properly. 2-3 to 2-6 acquired. Also check the connection between the 30-C Scanner Box and the module. Noise enters the input signal If the signal line and the AC power supply line are close to each other, 2-3 move them apart. Also make sure that the signal line is away from the noise source. Change to a shielded signal wire if you are not already using one. 2-3 Measured values are not correct. Check that the ambient temperature and humidity are within the 4-5 allowed ranges. If you did not allow a warm-up time of 30 minutes, try measuring again after the warm-up time has passed. Check to see that the input signal level is not exceeding the 4-1, 4-2 measurement range. Temperature measurement is not Check that the RJC setting is correct. 1-3, 1-5 correct. Check whether the thermocouple type and polarity are set properly. Check to see that the thermocouple is not burnt out after clicking the Exec button under Burn Out. Check whether the terminal cover for the 30-C Scanner Box is 2-5 attached. Check to see that there is no draft in the area where the instrument is located that might cause significant changes in temperature. Check to see that the two types of thermocouple wires are not too far apart, the tip is not touching a metal object, and that the thermocouple is being handled properly. Check to see that the input signal level from the object being measured is within the measurement range. The displayed waveform does not Check whether the measurement has been started on the operation 1-3 get updated. panel. Check whether the sampling interval is set properly on the operation 1-6 panel. The waveform is not displayed. Check whether measurement has been started on the operation panel. 1-3 If the time base setting is BUSCK, check to see that the time base 1-6, * source is set properly in the Trigger Source/Time Base Source/Arming Setting dialog box of the WE7000 Control Software. Check to see that the input signal level from the object being measured is within the measurement range. The waveform monitor is not Check that the waveform monitor ON/OFF button located to the right of 1-3 displayed. the Start button on the operation panel is turned ON. * See the WE7000 User s Manual (IM E)

25 3.2 Self Test If you believe that the module is not operating correctly, perform the self test according to the following steps. Executing the Self Test 1. In the WE7000 Control Software, select System > Self Test. 2. In the Self Test dialog box, select the station name and slot number of the module to be tested, and click the Execute button. Executing is displayed in the Result box. Verifying Test Results If a value other than 0 is displayed in the Result box of the Self Test dialog box, the module is probably malfunctioning. Contact your nearest YOKOGAWA representative as listed on the back cover of this manual. 3-2

26 Troubleshooting and Maintenance 3.3 Maintenance Maintenance of Parts There are no parts in this module that require periodic replacement. Calibration We recommend that you calibrate the measurement module once a year to assure its measurement accuracy. Contact your nearest YOKOGAWA representative as listed on the back cover of this manual for calibration

27 Specifications Chapter 4 Specifications 4.1 Performance Specifications Input Signal Thermocouple: DC voltage: Resistance temperature detector: Resistance: K, E, J, T (2 wire system) 20 mv, 200 mv, 2 V, 20 V (2 wire system) Pt100 (4 wire system) 20 Ω, 200 Ω, 2 kω, 20 kω, 200 kω, 2 MΩ (4 wire system) Number of input channels With only 2 wire systems connected: 30, with only 4 wire systems connected: 16 Groups: Group 1 (C1-C15), Group 2 (C16-C30) Possible to specify wiring (2 wire system/4 wire system) for each group. 4 Input format Floating unbalance input, isolated between input and ground Input terminal type Multi-pole square connector (to connect the 30-C Scanner Box, sold separately) Measurement Mode Normal Scan: all channels (30 channels total) Fast Scan: odd channels from group 1, and even channels from group 2 (16 channels total) Sampling interval Internal time base Normal scan: 0.10 s to 60 min (0.9 s or more if any channel uses the 200 kω/2 MΩ range) Fast Scan: 0.06 s to 60 min (0.46 s or more if any channel uses the 200 kω/2 MΩ range) Normal Scan Fast Scan Integration time 0.10 to 0.19 s 0.06 to 0.11 s 1 ms 0.2 to 0.79 s 0.12 to 0.44 s 4 ms 0.8 to 3.49 s 0.45 to 1.99 s 16.7/20 ms 3.5 s to 2.0 s to 100 ms If any channel uses the 200 kω or 2 MΩ range, an additional 0.8 s and 0.4 s are added during normal scan and fast scan. Can be specified in units of 0.01 s for the 0.06 s to 60.0 s range and 60.0 s to 60.0 min range. External Time Base Normal Scan: 0.15 s to 60 min (0.95 s or more if any channel uses the 200 kω/2 MΩ range) Fast Scan: 0.1 s to 60 min (0.5 s or more if any channel uses the 200 kω/2 MΩ range) Normal Scan Fast Scan Integration time 0.15 to 0.24 s 0.10 to 0.14 s 1 ms 0.25 to 1.09 s 0.15 to 0.59 s 4 ms 1.10 to 3.69 s 0.60 to 2.09 s 16.7/20 ms 3.7 s to 2.1 s to 100 ms If any channel uses the 200 kω or 2 MΩ range, an additional 0.8 s and 0.4 s are added during normal scan and fast scan. Can be specified in units of 0.01 s for the 0.06 s to 60.0 s range and 60.0 s to 60.0 min range. 4-1

28 4.1 Performance Specifications Measurement Range and Resolution TC Input Type Measurement Range Resolution K to C 0.1 C E to C 0.1 C J to C 0.1 C T to C 0.1 C Units: C, K or F can be selected. Reference junction compensation: internal or external can be selected. Burn out: auto or manual detect can be selected. Resistance temperature detector (4 wire system) Range Measurement Range Resolution Measured Current Pt to 650 C 0.01 (0.1) C 1 ma The resolution in the parentheses is for an integration time of 1 ms or 4 ms. DC voltage Range Maximum display Resolution 20 mv (19.999) 100 nv (1 µv) 200 mv (199.99) 1 µv (10 µv) 2 V (1.9999) 10 µv (10 µv) 20V (19.999) 100 µv (1 mv) The resolution in the parentheses is for an integration time of 1 ms or 4 ms. Resistance (4 wire system) Range Maximum display Resolution Measured Current 20 Ω (19.999) 100 µω (1 mω) 1 ma 200 Ω (199.99) 1 mω (10 mω) 1 ma 2 kω (1.9999) 10 mω (100 mω) 1 ma 20 kω (19.999) 100 mω (1 Ω) 100 µa 200 kω (199.99) 1 Ω (10 Ω) 10 µa 2 MΩ (1.9999) 10 Ω (100Ω) 1 µa Open terminal voltage: 10 V max. The resolution in the parentheses is for an integration time of 1 or 4 ms. Accuracy Thermocouple ±(% of reading + C) Gain error (%) Offset error C (for every integration time) Range Measurement Range 100 ms 16.7/20 ms 4 ms 1 ms K 200 t< 100 C t<1300 C E 200 t< 100 C t<800 C J 200 t< 100 C t<1100 C T 200 t< 100 C t<400 C Resistance temperature detector ±(% of reading + C) Gain error (%) Offset error C (for every integration time) Range Measurement Range 100 ms 16.7/20 ms 4 ms 1 ms Pt t<200 C t<650 C

29 Specifications 4.1 Performance Specifications DC voltage ±(% of reading + digit) Offset error (digit) (for every integration time) Range Gain error (%) 100 ms 16.7/20 ms 4 ms 1 ms 20 mv mv V V Resistance ±(% of reading + digit) Offset error (digit) (for every integration time) Range Gain error (%) 100 ms 16.7/20 ms 4 ms 1 ms 20 Ω Ω kω kω kω MΩ Reference Junction Compensation Accuracy 1 C (the value not including the noise component when the temperature of the 30-C Scanner Box is balanced). Temperature coefficient In the 20 V range: ±(accuracy/5)/ C Other ranges: ±(accuracy/10)/ C owever, at 5 to 18 C or 20 to 40 C Computaion Alarm Output The calculations below can be turned ON/OFF for each channel. Difference Difference from the reference channel. When modules are linked, the difference can be computed across modules. owever, difference cannot be computed between two different measurement functions. NU Sets the NU value for each channel. Moving Average 100 samples maximum. Can be specified for each channel. Can output trigger signals to the internal bus (BUSTRG1/BUSTRG2) of the measuring station on the AND/OR condition of the alarm detection result specified by high, low, in, out, rising, or falling of each channel. 4-3

30 4.2 Factory Default Settings Function (measurement function): TC Range (measurement range): Type T Reference Channel: C 1 on the module Sampling Interval: 0.80 s Burn Out (Auto Detect): Off Alarm old: Off Channel: C 1 on the module NU (use NU value): Off Delta (difference measurement): Off Averaging: Off Type (alarm type): Off RJC Source (internal/external switch for the reference junction compensation): Internal Alarm Combination: AND Out (alarm output): On Time Base: Internal Unit (units of temperature measurement): C Fast Scan Mode: Off Monitor (group selection of alarm status for each channel/burn out status display): Off 4-4

31 Specifications 4.3 General Specifications Safety Standards Complies with CSA C222 No and EN , conforms to JIS C Standard Operating Conditions Warm-up Time Ambient Temperature: 23±5 C Ambient umidity: At least 1 hour Operating Condition 50±10% R After the warm-up time has passed. Same as those of the measuring station Storage Condition Temperature: 20 to 60 C umidity: 20 to 80% R (no condensation) Maximum Allowable Input Range 30 VACrms, 42.4 Vpeak or ±60 VDC (Overvoltage category: CAT I and II) Maximum Common Mode Voltage 150 V rms or ±150 VDC between ground and terminal Maximum Noise between Channels Input Resistance 60 VACrms, 84.8 Vpeak or ±100 VDC 1 GΩ or more (except, 10 MΩ ±1% for the 20 V range) Allowable Signal Resistance 1 kω or lower (when using thermocouple or resistance temperature detector) Normal Mode Rejection Ratio Approximately 60 db (at an integration time of 16.7 ms or longer, 50/60 z ±0.1%) Common Mode Rejection Ratio Approx. 120 db or more. (at an integration time of 16.7 ms or longer, 50/60 z ±0.1%, and unbalanced input Rs=1 kω) Withstand Voltage 1500 VAC at 60 z between ground and terminal for one minute Power Consumption 7.0 VA (typical value* at 100 V/50 z when connected to the 30-C Scanner Box (model: )) External Dimensions Approx. 33(W) 243() 232(D) mm (projections excluded) Weight Approx. 0.8 kg Number of Used Slots 1 Standard Accessories User s manual (1) Optional Accessories C Scanner Box (cable length: 1 m) /3 30-C Scanner Box (cable length: 3 m) 4 * The typical value is a typical or average value. It is not strictly guaranteed. 4-5

32 4.4 Specifications for the 30-C Scanner Box Number of Input Channels Input Format 30 Isolation between input and ground Functional isolation between the Input channels*. * Functional isolation means insulation that removes the effect of noise from the electric potential difference occurring between 2 points, and is intended to satisfy measurement specifications rather than to provide protection from electric shock. Input Terminal type M4 Screw The maximum allowable cross-sectional area per one cable (due to the restriction on the area of the cover opening) when connecting to all input terminals. When using the cable clamp: 2 mm 2 Without the cable clamp: 19 mm 2 Operating Conditions Temperature: 5 to 40 C umidity: 20-80% R (except maximum wet-bulb temperature of 29 C, no condensation) Maximum Allowable Input Voltage 30 VACrms, 42.4 Vpeak or ±60 VDC between and terminals (overvoltage category: CAT I and II). Maximum Noise between Channels 60 VACrms, ±100 VDC. Insulation Withstand Voltage Between voltage input terminals and case: 60 z 1500 VACrms for one minute Insulation Resistance Between input terminal and ground: 10 MΩ (500 VDC) or more Modules that can be Connected (WE C Fast Digital Thermometer Module) Weight Approx. 1.3 kg External Dimensions Approx. 123(W) 76() 305(D) mm (projections excluded) 4-6

33 Specifications 4.5 External Dimensions WE C Fast Digital Thermometer Module Units: mm START C,FAST 30-C Scanner Box (Model ) Main Unit Connecting cable : 1 m /3: 3 m If not specified, the tolerance is ±3%. owever, if less than 10 mm, the tolerance is ±0.3 mm. 4-7

34 Index Index Index Symbols *.csv *.wvf wire system C Scanner Box wire system , 2-4 A AND Alarm Alarm Type Arming Automatic Saving Average B Burn Out C Combination Contents of the Package... 2 Controlling the Timing of Measurement Start D DC Voltage Input DCV Delta Difference Computation E External F Fall Fast Scan Mode File Conversion Front Panel Function G Group igh old I In Input Connector Internal ow M Measurement Function Model... 2 Moving Average N NO NU O OM OR On Out R RTD Range Reference Junction Compensation Reset Resistance Resistance Temperature Detector Rise reference channel S START Sampling Interval Scaling Self Test System Configuration T TC Thermocouple Time Base Troubleshooting Type terminal arrangement U Unit Units for Temperature Measurement Index Index-1